London Olympics (Aug. 10, 2012)

United States' women's 4 x100-meter relay team members, from left, Carmelita Jeter, Bianca Knight, Tianna Madison and Allyson Felix, celebrate their gold medal win during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. The United States relay team set a new world record with a time of 40.82 seconds (AP Photo/Matt Dunham)

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South Korea's head coach Hong Myung-bo is hoisted up by his players after the team won their men's soccer bronze medal match against Japan in Cardiff, Wales, at the 2012 London Summer Olympics, Friday, Aug. 10, 2012. (AP Photo/Luca Bruno)

South Africa's Oscar Pistorius, right, waits for the baton in the men's 4x400-meter relay final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/David J. Phillip)

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France's Renaud Lavillenie clears the bar in the men's pole vault final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Hassan Ammar)

The team from China competes during the synchronized swimming team free routine final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Friday, Aug. 10, 2012. China took the silver medal in the event. (AP Photo/Mark J. Terrill)

Italy men's water polo players react in the final seconds of a men's semifinal water polo match at against Serbia the 2012 Summer Olympics, Friday, Aug. 10, 2012, in London. Italy won 9-7 and will play Croatia for the gold on Aug. 12. (AP Photo/Julio Cortez)

Ethiopia's Meseret Defar holds up a picture to her face after she won gold in the women's 5000-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Matt Dunham)

United States' Carmelita Jeter reacts as she crosses the finish line to win the women's 4 x 100-meter relay during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. The United States relay team set a new world record with a time of 40.82 seconds.(AP Photo/Anja Niedringhaus)

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Brazil's Squel Stein is carried from the course on a stretcher during the BMX cycling women's semifinal run at the 2012 Summer Olympics, Friday, Aug. 10, 2012, in London. Stein fell off her bike after she landed on the grass following a big jump in the first half of the course.(AP Photo/Matt Rourke)

United States' Morgan Uceny falls as Kenya's Hellen Onsando Obiri and Ethiopia's Abeba Aregawi try to avoid her during the women's 1500-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Daniel Ochoa De Olza)

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Germany's Raphael Holzdeppe reacts after clearing the bar in the men's pole vault final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Hassan Ammar)